CN206311655U - A kind of high-tension cable shield circulating current monitoring and compensating device - Google Patents
A kind of high-tension cable shield circulating current monitoring and compensating device Download PDFInfo
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- CN206311655U CN206311655U CN201621296937.9U CN201621296937U CN206311655U CN 206311655 U CN206311655 U CN 206311655U CN 201621296937 U CN201621296937 U CN 201621296937U CN 206311655 U CN206311655 U CN 206311655U
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- core
- casing
- groove
- upper core
- epoxy package
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Abstract
The utility model discloses a kind of high-tension cable shield circulating current monitoring and compensating device of power transmission technology field,Including casing,The top two ends of the casing are provided with motor,The top two ends of the groove are provided with the regulation screw channel that adjusting screw rod matches,Lower epoxy package is provided with the top of the groove,The inner chamber of the lower epoxy package is provided with lower core,Upper core is provided with the top of the lower core,Felt pad is provided between the top two ends of the lower core and the bottom two ends of upper core,The outer wall of the upper core is provided with epoxy package,The outer wall of the lower core and upper core is provided with coil,The inner cavity top of the casing is provided with current transformer,Change the air gap thickness between upper core and lower core by adjusting felt pad,Carry out the compensation performance of adjusting means,Improve compensation efficiency,So that the device has the bigger scope of application.
Description
Technical field
The utility model is related to power transmission technology field, specially a kind of high-tension cable shield circulating current monitoring compensation dress
Put.
Background technology
Attention with the development and society of Chinese Urbanization construction to environmental protection, matches somebody with somebody in 220kV and following city
Cable run is just being built and is transforming in electric system energetically.Mesolow three-core cable is different from, high voltage single-core cable is protected in its metal
The induced voltage produced on layer is not zero, and when metal sheath forms path with the earth, the circulation produced on metal sheath can
Numerical value higher can be reached, causes sheath to generate heat, reduce the current-carrying capacity of cable operation.It is exhausted that metal sheath overheat also results in cable
Edge is aging, and the safe operation to cable constitutes a threat to.Reduced frequently with three sections of conversion methods or compensating cable method both at home and abroad at present
Metal sheath voltage.But in actual engineering practice, with the development of power construction, the transformation of cable run is increasing,
It is sometimes difficult to ensure cable sheath complete transposition and lays symmetrical, so as to causes metal sheath Voltage unbalance；And use compensation
The method of cable, increased construction cost and is constrained by steric requirements.In addition also have using cable protective layer protector come
Protection cable sheath, overvoltage protection is carried out by release current in cable protective layer protector principle, rather than by reducing
Shield circulating current, the effect that put into operation in Voltage Cable Lines Construction is unsatisfactory.In view of existing cable sheath mentioned above is protected
Protection unit runs the bad or relatively costly problem of most effect, and the utility model designs a kind of high-tension cable shield circulating current monitoring
Compensation device, it is mentioned above to solve the problems, such as.
Utility model content
The purpose of this utility model is to provide a kind of high-tension cable shield circulating current monitoring and compensating device, to solve the above-mentioned back of the body
The cable protective layer protector effect that put into operation in Voltage Cable Lines Construction proposed in scape technology is unsatisfactory, existing cable protection
Layer protection device runs that most effect is bad or relatively costly problem.
To achieve the above object, the utility model provides following technical scheme：A kind of high-tension cable shield circulating current monitoring is mended
Device, including casing are repaid, the top two ends of the casing are provided with motor, and the bottom two ends of the casing are provided with regulation
Screw rod, the top of the adjusting screw rod is connected with the clutch end of motor, and the bottom of the casing sets fluted, described recessed
The top two ends of groove are provided with the regulation screw channel that adjusting screw rod matches, and are provided with the top of the groove outside lower epoxy resin
Shell, the inner chamber of the lower epoxy package is provided with lower core, and upper core, the lower iron are provided with the top of the lower core
Felt pad is provided between the top two ends of core and the bottom two ends of upper core, the outer wall of the upper core is provided with epoxy
Resin enclosure, the top of the upper epoxy package is fitted with the inner cavity top of casing, the lower core and upper core it is outer
Wall is provided with coil, and the inner cavity top of the casing is provided with current transformer, and the bottom of the groove is provided with base, institute
Current transformer is stated to be electrically connected with motor.
Preferably, the outer wall of the groove is provided with screw, and the groove is connected by screw with lower epoxy package.
Preferably, the felt pad includes connected unit, and the bottom of the connected unit is provided with connecting seat, the connected unit bottom
Portion extends the inner chamber of connecting seat, and the bottom of the connected unit is provided with connecting plate, the connecting plate and connecting seat intracavity bottom it
Between set and have elastic component.
Compared with prior art, the beneficial effects of the utility model are：This kind of high-tension cable shield circulating current monitoring compensation dress
Put, an annular core, each intersection in the cross interconnected case for having set up are turned into using upper core and lower core docking
When being installed in POI cable run, remerged after directly separating upper core and lower core and be installed on cable, make electricity
Cable is located in annular core, facilitates equipment to install, and improves installation effectiveness, is set using a joint wherein and is separated upper iron
The felt pad of core and lower core, is adjusted by adjusting felt pad so as to change the air gap thickness between upper core and lower core
The compensation performance of device, improves compensation efficiency, so that the device has the bigger scope of application.
Brief description of the drawings
Fig. 1 is the utility model structural representation；
Fig. 2 is the utility model felt pad structural representation.
In figure：1 casing, 2 motors, 3 adjusting screw rods, 4 grooves, 5 regulation screw channels, 6 times epoxy packages, 7 lower cores, 8
Felt pad, 81 connected units, 82 connecting seats, 83 connecting plates, 84 flexible members, 9 upper cores, epoxy package on 10,11 coils,
12 current transformers, 13 bases.
Specific embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment for being obtained, belongs to the scope of the utility model protection.
Fig. 1-2 is referred to, the utility model provides a kind of technical scheme：A kind of high-tension cable shield circulating current monitoring compensation dress
Put, including casing 1, the top two ends of casing 1 are provided with motor 2, and the bottom two ends of casing 1 are provided with adjusting screw rod 3, adjust
The top for saving screw rod 3 is connected with the clutch end of motor 2, and the bottom of casing 1 sets fluted 4, and the top two ends of groove 4 are equal
The regulation screw channel 5 that adjusting screw rod 3 matches is provided with, the top of groove 4 is provided with lower epoxy package 6, lower epoxy resin
The inner chamber of shell 6 is provided with lower core 7, and the top of lower core 7 is provided with upper core 9, the top two ends of lower core 7 and upper core
Felt pad 8 is provided between 9 bottom two ends, the outer wall of upper core 9 is provided with epoxy package 10, upper epoxy resin
The top of shell 10 is fitted with the inner cavity top of casing 1, and the outer wall of lower core 7 and upper core 9 is provided with coil 11, casing 1
Inner cavity top be provided with current transformer 12, the bottom of groove 4 is provided with base 13, and current transformer 12 is electrical with motor 2
Connection.
Wherein, the outer wall of groove 4 is provided with screw, and groove 4 is connected by screw with lower epoxy package 6, anchor
Groove 4 and lower epoxy package 6, felt pad 8 include connected unit 81, and the bottom of connected unit 81 is provided with connecting seat 82, connected unit
81 bottoms extend the inner chamber of connecting seat 82, and the bottom of connected unit 81 is provided with connecting plate 83, connecting plate 83 and the inner chamber of connecting seat 82
Set between bottom and have elastic component 84, for adjusting the air gap thickness distance between upper core 9 and lower core 7, so as to adjust
The compensation performance of device.
Operation principle：One annular core is turned into using upper core 9 and the docking of lower core 7, what annular core outer wall was set
Coil 11, for improving device performance, and is provided with connection felt pad 8, upper epoxy package 10 and the inner chamber of casing 1 in joint
Top is fitted, and the electric current in casing 1 is sensed by current transformer 12, then starts motor 2, drives adjusting screw rod 3, adjusts spiral shell
Bar 3 coordinates with regulation screw channel 5 so that felt pad 8 is moved up and down, and flexible member 84 plays cushioning effect, for adjusting upper core 9
And the air gap thickness distance between lower core 7, so that the compensation performance of adjusting means, upper epoxy package 10 and lower asphalt mixtures modified by epoxy resin
Fat shell 6 has high leakproofness.
While there has been shown and described that embodiment of the present utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out various changes in the case where principle of the present utility model and spirit is not departed from, repaiies
Change, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.
Claims (3)
1. a kind of high-tension cable shield circulating current monitoring and compensating device, including casing (1), it is characterised in that：The top of the casing (1)
Portion two ends are provided with motor (2), and the bottom two ends of the casing (1) are provided with adjusting screw rod (3), the adjusting screw rod
(3) top is connected with the clutch end of motor (2), and the bottom of the casing (1) sets fluted (4), the groove (4)
Top two ends be provided with the regulation screw channel (5) that adjusting screw rod (3) matches, be provided with lower ring at the top of the groove (4)
Oxygen resin enclosure (6), the inner chamber of the lower epoxy package (6) is provided with lower core (7), the top of the lower core (7)
Upper core (9) is provided with, insulation is provided between the top two ends of the lower core (7) and the bottom two ends of upper core (9)
Pad (8), the outer wall of the upper core (9) is provided with epoxy package (10), the top of the upper epoxy package (10)
Portion fits with the inner cavity top of casing (1), and the outer wall of the lower core (7) and upper core (9) is provided with coil (11), described
The inner cavity top of casing (1) is provided with current transformer (12), and the bottom of the groove (4) is provided with base (13), the electricity
Current transformer (12) is electrically connected with motor (2).
2. a kind of high-tension cable shield circulating current monitoring and compensating device according to claim 1, it is characterised in that：The groove
(4) outer wall is provided with screw, and the groove (4) is connected by screw with lower epoxy package (6).
3. a kind of high-tension cable shield circulating current monitoring and compensating device according to claim 1, it is characterised in that：The insulation
Pad (8) includes connected unit (81), and the bottom of the connected unit (81) is provided with connecting seat (82), and connected unit (81) bottom is stretched
To the inner chamber of connecting seat (82), the bottom of the connected unit (81) is provided with connecting plate (83), the connecting plate (83) be connected
Set have elastic component (84) between seat (82) intracavity bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621296937.9U CN206311655U (en) | 2016-11-30 | 2016-11-30 | A kind of high-tension cable shield circulating current monitoring and compensating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621296937.9U CN206311655U (en) | 2016-11-30 | 2016-11-30 | A kind of high-tension cable shield circulating current monitoring and compensating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206311655U true CN206311655U (en) | 2017-07-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621296937.9U Active CN206311655U (en) | 2016-11-30 | 2016-11-30 | A kind of high-tension cable shield circulating current monitoring and compensating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206311655U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108872890A (en) * | 2018-04-02 | 2018-11-23 | 江门日野电机有限公司 | Motor annular core device for measuring properties and method |
-
2016
- 2016-11-30 CN CN201621296937.9U patent/CN206311655U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108872890A (en) * | 2018-04-02 | 2018-11-23 | 江门日野电机有限公司 | Motor annular core device for measuring properties and method |
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